Solvent exfoliation of electronic-grade, two-dimensional black phosphorus.

  title={Solvent exfoliation of electronic-grade, two-dimensional black phosphorus.},
  author={Joohoon Kang and Joshua D. Wood and Spencer A. Wells and Jae-Hyeok Lee and Xiaolong Liu and Kan-Sheng Chen and Mark C. Hersam},
  journal={ACS nano},
  volume={9 4},
Solution dispersions of two-dimensional (2D) black phosphorus (BP)--often referred to as phosphorene--are achieved by solvent exfoliation. These pristine, electronic-grade BP dispersions are produced with anhydrous organic solvents in a sealed-tip ultrasonication system, which circumvents BP degradation that would otherwise occur via solvated O2 or H2O. Among conventional solvents, N-methylpyrrolidone (NMP) is found to provide stable, highly concentrated (∼0.4 mg/mL) BP dispersions. Atomic… CONTINUE READING
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